scholarly journals Correlation between non-Fermi-liquid behavior and superconductivity in (Ca, La)(Fe,Co) As2 iron arsenides: A high-pressure study

2017 ◽  
Vol 96 (18) ◽  
Author(s):  
W. Zhou ◽  
F. Ke ◽  
Xiaofeng Xu ◽  
R. Sankar ◽  
X. Xing ◽  
...  
Keyword(s):  
High Pressure ◽  
Fermi Liquid ◽  
Liquid Behavior ◽  
High Pressure Study ◽  
Fermi Liquid Behavior

Electronic Properties of Magnetic Superconductor HoNi2B2C Under High Pressure

2003 ◽  
Vol 17 (18n20) ◽  
pp. 3664-3671 ◽  
Author(s):  
G. Oomi ◽  
N. Matsuda ◽  
T. Kagayama ◽  
C. K. Cho ◽  
P. C. Canfield
Keyword(s):  
Magnetic Field ◽  
High Pressure ◽  
Electrical Resistivity ◽  
Fermi Liquid ◽  
High Pressures ◽  
Metamagnetic Transition ◽  
Liquid Behavior ◽  
The Stability ◽  
Normal Fermi ◽  
Fermi Liquid Behavior

The electrical resistivity of single crystalline HoNi 2 B 2 C has been measured at high pressure and magnetic fields. The three anomalies in the magnetoresistance due to metamagnetic transitions are observed both at ambient and high pressures. It is found that the metamagnetic transition fields increase with increasing pressure. The temperature dependence of electrical resistivity is strongly dependent on magnetic field. Non Fermi liquid behavior is observed near the metamagnetic transition fields. But the normal Fermi liquid behavior recovers after completing the phase transition. The Grüneisen parameters are also calculated to examine the stability of electronic state.

scholarly journals A new quasi-one-dimensional compound Ba3TiTe5 and superconductivity induced by pressure

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Jun Zhang ◽  
Yating Jia ◽  
Xiancheng Wang ◽  
Zhi Li ◽  
Lei Duan ◽  
...  
Keyword(s):  
High Pressure ◽  
Fermi Liquid ◽  
Density Wave ◽  
Hexagonal Structure ◽  
Characteristic Structure ◽  
One Dimensional ◽  
Starting Point ◽  
Liquid Behavior ◽  
Exotic Physics ◽  
Fermi Liquid Behavior

Abstract We report systematic studies of a new quasi-one-dimensional (quasi-1D) compound, Ba3TiTe5, and the high-pressure induced superconductivity therein. Ba3TiTe5 was synthesized at high pressure and high temperature. It crystallizes into a hexagonal structure (P63/mcm), which consists of infinite face-sharing octahedral TiTe6 chains and Te chains along the c axis, exhibiting a strong 1D characteristic structure. The first-principles calculations demonstrate that Ba3TiTe5 is a well-defined 1D conductor; thus, it can be considered a starting point to explore the exotic physics induced by pressure by enhancing the interchain hopping to move the 1D conductor to a high-dimensional metal. For Ba3TiTe5, high-pressure techniques were employed to study the emerging physics dependent on interchain hopping, such as the Umklapp scattering effect, spin/charge density wave (SDW/CDW), superconductivity and non-Fermi liquid behavior. Finally, a complete phase diagram was plotted. The superconductivity emerges at 8.8 GPa, near which the Umklapp gap is mostly suppressed. Tc is enhanced and reaches a maximum of ~6 K at ~36.7 GPa, where the SDW/CDW is completely suppressed, and a non-Fermi liquid behavior appears. Our results suggest that the appearance of superconductivity is associated with the fluctuation due to the suppression of the Umklapp gap and that the enhancement of the Tc is related to the fluctuation of the SDW/CDW.

Possible Fermi liquid behavior of 5f electrons in UPt3 at T⪢TK

1990 ◽  
Vol 163 (1-3) ◽  
pp. 167-168 ◽  
Author(s):  
A.J. Arko ◽  
P. Armstrong ◽  
M. Wire
Keyword(s):  
Fermi Liquid ◽  
Liquid Behavior ◽  
5F Electrons ◽  
Fermi Liquid Behavior

scholarly journals Non-Fermi-Liquid Behavior in Metallic Quasicrystals with Local Magnetic Moments

2015 ◽  
Vol 115 (3) ◽  
Author(s):  
Eric C. Andrade ◽  
Anuradha Jagannathan ◽  
Eduardo Miranda ◽  
Matthias Vojta ◽  
Vladimir Dobrosavljević
Keyword(s):  
Fermi Liquid ◽  
Magnetic Moments ◽  
Liquid Behavior ◽  
Fermi Liquid Behavior

scholarly journals Crossover from Landau Fermi liquid to non-Fermi liquid behavior: Indications from Hall measurements on CeCoIn5

2007 ◽  
Vol 460-462 ◽  
pp. 678-679
Author(s):  
C. Capan ◽  
S. Singh ◽  
S. Nair ◽  
M. Nicklas ◽  
H. Lee ◽  
...  
Keyword(s):  
Fermi Liquid ◽  
Hall Measurements ◽  
Liquid Behavior ◽  
Fermi Liquid Behavior
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